25 Questions
Which process does NOT typically occur in a molecule upon absorption of electromagnetic radiation?
Vaporization
What can a molecule undergo upon absorption of electromagnetic radiation?
Ionization
Which of the following is NOT a common result of a molecule absorbing electromagnetic radiation?
Formation of new elements
What is one of the possible outcomes for a molecule after absorbing electromagnetic radiation?
Emission of light
What is a potential consequence for a molecule after absorbing electromagnetic radiation?
Transition to an excited state
Which of the following is a region of the electromagnetic spectrum?
Radio waves
Which of these is NOT a region of the electromagnetic spectrum?
Vibrational energy levels
Which pair of items in the list are both regions of the electromagnetic spectrum?
Energy Radio waves, Infrared
Which of the following is an incorrect pairing of a term and its definition?
Nuclear spin levels - a region of the electromagnetic spectrum
Which of the following is a type of energy level, rather than a region of the electromagnetic spectrum?
Vibrational energy levels
What is the relationship between the frequency and wavelength of light or radiation?
Bed is directly proportional to frequency and inversely proportional to wavelength
What can be concluded about the relationship between the wavelength and frequency of light or radiation?
As the wavelength decreases, the frequency increases
Which of the following statements about the relationship between wavelength and energy of light or radiation is correct?
As wavelength decreases, energy increases
What can be inferred about the nature of light or radiation described in the text?
It is a wave-like phenomenon
What is the main concept or principle being described in the given text?
The inverse relationship between frequency and wavelength of electromagnetic radiation
What happens when visible light interacts with a molecule?
It moves electrons from a filled bonding MO to an unfilled anti-bonding MO
How does visible light impact the electron configuration in a molecule?
It excites electrons from filled bonding MOs to unfilled anti-bonding MOs
What type of MO does visible light typically affect in a molecule?
Filled anti-bonding MO
Which type of molecular orbital receives electrons when exposed to visible light?
Anti-bonding MO
In the context of molecular orbitals, what role does visible light play?
Exciting electrons from filled bonding to unfilled anti-bonding MOs
What is the term used to describe the different types of excitations that occur when a molecule absorbs energy?
Transition states
What is required for each type of transition state?
A distinctive energy (ΔE)
What process is being described in the given text?
Molecular absorption spectroscopy
Which of the following is NOT a type of molecular excitation that could be referred to in the text?
Nuclear excitation
What does the abbreviation 'ΔE' stand for in the context of the given text?
Energy difference
This quiz covers the topic discussed in Lecture 2 of the UV series, focusing on the absorption of electromagnetic radiation by molecules. Questions may include the different pathways molecules can take upon absorbing such radiation.
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